H-B-771B, FEDERAL SPECIFICATION: BRUSHES, WIRE, ROTARY, GENERAL PURPOSE (29-SEP-1966) [S/S BY A-A-2516]

H-B-771B, FEDERAL SPECIFICATION: BRUSHES, WIRE, ROTARY, GENERAL PURPOSE (29-SEP-1966) [S/S BY A-A-2516]., This specification covers wire brushes for use with pneumatic or electric tools in the removal of rust, scale, paint, or burrs from all types of metal surfaces, such as rivet heads, protruding bolts and lugs, I-Beams, angles, channels, and similar items, most commonly used by the Federal Government.